Autoimmune oophoritis (autoimmune ovarian inflammation)

Autoimmune oophoritis affects the ovaries, where the immune system is thought to selectively target the theca cells surrounding developing follicles, while leaving other ovarian cells more intact. This pattern of injury is one recognized driver of primary ovarian insufficiency, in which the ovaries lose normal function earlier than expected. Diagnosis is difficult because the accepted gold standard is ovarian biopsy, an invasive step rarely performed in practice, so most cases are inferred rather than confirmed. This condition often appears alongside other autoimmune endocrine conditions, especially Addison's disease.

Because of these diagnostic limits, prevalence is hard to state precisely. Research estimates that autoimmune mechanisms may underlie roughly 4 to 30 percent of premature ovarian failure cases, a wide range that reflects how much uncertainty remains in identifying the autoimmune subtype specifically.

Common signs

irregular, infrequent, or absent periods; difficulty conceiving; and sometimes hot flashes or vaginal dryness. The ovaries may be small, or enlarged when inflammation is active.

This is a plain-language summary for orientation, not a diagnosis. Mechanisms are described as current understanding, not settled fact. Work with your own clinician for your care.